A vertical windmill

Abstract

The present application provides a vertical windmill, which belongs to the field of wind power generation. The vertical windmill is fixed to a fixed frame, and the vertical windmill includes a main shaft, a blade assembly and a first magnetic assembly. The blade assembly is connected to the main shaft, and the blade assembly is configured to drive the main shaft to rotate synchronously and generate electricity; the first magnetic assembly includes a first magnet and a second magnet with the same magnetic properties and arranged opposite to each other, the first magnet is installed at the bottom of the main shaft, and the second magnet is installed on the first base, so as to reduce the pressure on the main shaft by the repulsive force between the first magnet and the second magnet. Through this vertical windmill, the pressure on the main shaft can be reduced to a certain extent, thereby playing a role in protecting the main shaft.

Description

Technical Field

[0001] The present application relates to the field of wind power generation, and in particular to a vertical windmill. Background Art

[0002] In the existing technology, wind power generation has been widely used due to its advantages of being green and efficient. However, the overall weight of the vertical windmills currently used for power generation is relatively large. Accordingly, the pressure on the windmill main shaft is relatively large, which makes the main shaft prone to damage or rotation being affected during rotation. Summary of the Invention

[0003] The purpose of this application is to provide a vertical windmill that can reduce the pressure on the main shaft to a certain extent, thereby protecting the main shaft.

[0004] The embodiment of the present application is implemented as follows:

[0005] An embodiment of the present application provides a vertical windmill fixed to a fixed frame, comprising a main shaft, a blade assembly, and a first magnetic assembly. The blade assembly is connected to the main shaft and configured to drive the main shaft to rotate synchronously and generate electricity. The first magnetic assembly comprises a first magnet and a second magnet of identical magnetic properties, disposed opposite each other. The first magnet is mounted on the bottom of the main shaft, and the second magnet is mounted on a first base, so that the repulsive force between the first and second magnets reduces the pressure on the main shaft.

[0006] In the above technical solution, a first magnet is arranged at the bottom of the main shaft, and a second magnet opposite to the first magnet and with the same magnetic property is arranged on the first base. By utilizing the principle of like charges repel each other, part of the pressure on the main shaft can be offset, thereby reducing the pressure on the main shaft and protecting the main shaft.

[0007] In some optional embodiments, a second base is installed at the bottom end of the main shaft, the cross-sectional area of ​​the second base is larger than the cross-sectional area of ​​the main shaft, the first magnet is installed at the bottom of the second base, the cross-sectional area of ​​the first magnet is larger than the cross-sectional area of ​​the main shaft and less than or equal to the cross-sectional area of ​​the second base, and the cross-sectional area of ​​the second magnet corresponds to the cross-sectional area of ​​the first magnet.

[0008] In the above technical solution, the cross-sectional areas of the first and second magnets are set to be larger than the cross-sectional area of ​​the main shaft, which can provide a greater repulsive force than magnets with smaller cross-sectional areas, thereby offsetting more pressure on the main shaft; at the same time, a second base with a cross-sectional area larger than the cross-sectional area of ​​the main shaft is added to the bottom end of the main shaft, and the first magnet is installed on the second base. Compared with directly installing the first magnet at the bottom of the main shaft, the first magnet can have higher stability.

[0009] In some optional embodiments, the orthographic projections of the geometric center of the main shaft, the geometric center of the second base, the geometric center of the first magnet, the geometric center of the second magnet, and the geometric center of the first base in the axial direction of the main shaft coincide.

[0010] In the above technical solution, the arrangement is carried out in the above form, so that the first magnetic component is subjected to a more uniform force as a whole, thereby improving the stability of the main shaft.

[0011] In some optional embodiments, the vertical windmill includes at least two main shaft sections, which are connected by a connecting shaft, and the vertical windmill is provided with a second magnetic component in the area corresponding to the connecting shaft. The second magnetic component includes a third magnet and a fourth magnet with the same magnetic properties and arranged opposite to each other. The third magnet is installed on the connecting shaft, and the fourth magnet is fixed to the first bracket to reduce the pressure on the main shaft through the repulsive force between the third magnet and the fourth magnet.

[0012] In the above technical solution, a second magnetic component is arranged in the corresponding area of ​​the connecting shaft, wherein the third magnet is installed on the connecting shaft, and the fourth magnet is fixed to the first bracket of the peripheral device. The repulsive force provided by the third and fourth magnets that are relatively arranged and have the same magnetic properties can offset part of the pressure on the main shaft, thereby reducing the pressure on the main shaft and protecting the main shaft.

[0013] In some optional embodiments, the third magnet is mounted on the outer wall of the connecting shaft, and the fourth magnet is arranged corresponding to the third magnet.

[0014] In the above technical solution, the third magnet is installed on the outer wall of the connecting shaft. Compared with installing it on the inner wall of the connecting shaft, a larger third magnet can be installed, thereby providing a greater repulsive force and offsetting more pressure.

[0015] In some optional embodiments, the third magnet is sleeved on the outer wall of the connecting shaft.

[0016] In the above technical solution, the third magnet is arranged in the above form, which can enable the second magnetic component to generate a more evenly distributed repulsive force, thereby improving the stability of the main shaft.

[0017] In some optional embodiments, the blade assembly includes a plurality of wind turbine blades and a plurality of first connecting rods, one end of each first connecting rod is connected to a wind turbine blade, and the other end of each first connecting rod is fixed to the main shaft so that the wind turbine blade can drive the main shaft to rotate when exposed to wind, and each wind turbine blade is configured to rotate around the rotation axis of the wind turbine blade.

[0018] In the above technical solution, the wind turbine blades are configured to be able to revolve around the main axis and rotate around their own rotation axis. Compared with windmill blades that can only revolve around the main axis, the rotation efficiency of the windmill blades can be improved, thereby improving the power generation efficiency of the windmill.

[0019] In some optional embodiments, the vertical windmill also includes a transmission assembly, the transmission assembly includes a second connecting rod and a second conical tooth and a third conical tooth arranged at both ends of the second connecting rod and rotating synchronously, the first conical tooth is provided on the outer rotating sleeve of the main shaft, a first gear is provided on the rotating shaft, the second connecting rod is rotatably connected to the first connecting rod, the first conical tooth is engaged with the second conical tooth, the third conical tooth is engaged with the first gear, and the first conical tooth is configured to meet the following requirements: when the main shaft rotates, the first conical tooth remains stationary so that the wind turbine blades can rotate around the rotating shaft when exposed to wind.

[0020] In the above technical solution, the arrangement is carried out in the above form, which can easily realize the self-rotation of the windmill blades. At the same time, each transmission link in the above implementation adopts gear transmission, which makes the transmission process have the advantages of high transmission efficiency and relatively stable transmission process.

[0021] In some optional embodiments, the vertical windmill is provided with an annular guide rail corresponding to the bottom of the rotating shaft, the annular guide rail is fixed to the second bracket, the bottom of the rotating shaft is rotatably engaged with the annular guide rail, and the vertical windmill is provided with a third magnetic component, the third magnetic component includes a fifth magnet and a sixth magnet with the same magnetic properties and arranged opposite to each other, the fifth magnet is installed at the bottom of the rotating shaft, and the sixth magnet is installed at the top of the annular guide rail to reduce the pressure on the wind turbine blades through the repulsive force between the fifth magnet and the sixth magnet.

[0022] In the above technical solution, a corresponding annular guide rail is provided at the bottom of the rotating shaft, and the fifth magnet is installed at the bottom of the rotating shaft, and the sixth magnet is fixed to the second bracket of the peripheral device. The repulsive force provided by the fifth and sixth magnets that are relatively arranged and have the same magnetic properties can offset part of the pressure on the wind turbine blades, thereby reducing the pressure on the wind turbine blades and further reducing the pressure on the main shaft, thereby protecting the main shaft.

[0023] In some optional embodiments, a groove is provided at the bottom of the rotating shaft, the fifth magnet is installed at the bottom of the groove, a protrusion corresponding to the groove is provided at the top of the annular guide rail, and the sixth magnet is installed at the top of the protrusion.

[0024] In the above technical solution, by providing a groove at the bottom of the rotating shaft and a corresponding protrusion at the top of the annular guide rail, the wind turbine blade can be made more stable during rotation through the cooperation of the groove and the protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic structural diagram of a vertical windmill provided in an embodiment of the present application;

[0027] Figure 2 for Figure 1 An enlarged view of point I in FIG;

[0028] Figure 3 for Figure 1 The enlarged view of II in FIG;

[0029] Figure 4 for Figure 1 An enlarged view of III in another perspective;

[0030] Figure 5 for Figure 1 Magnified view of IV in .

[0031] Icon: 10-vertical windmill; 100-main shaft; 110-second base; 120-first conical tooth; 200-blade assembly; 210-wind turbine blade; 211-rotating shaft; 2111-first gear; 2112-groove; 220-first connecting rod; 230-transmission assembly; 231-second connecting rod; 232-second conical tooth; 233-third conical tooth; 240-annular guide rail; 241-protrusion; 300-third magnetic assembly; 310-fifth magnet; 320-sixth magnet; 400-first magnetic assembly; 410-first magnet; 420-second magnet; 500-first base; 600-connecting shaft; 700-second magnetic assembly; 710-third magnet; 720-fourth magnet. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of this application, it should be noted that the terms "center," "upper," "lower," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0037] See Figure 1 and Figure 2 The embodiment of the present application provides a vertical windmill 10, which is fixed to a fixed frame (not shown in the figure). The vertical windmill 10 includes a main shaft 100, a blade assembly 200, and a first magnetic assembly 400. The blade assembly 200 is connected to the main shaft 100 and is configured to drive the main shaft 100 to rotate synchronously and generate electricity. The first magnetic assembly 400 includes a first magnet 410 and a second magnet 420 with the same magnetic properties and arranged opposite to each other. The first magnet 410 is mounted on the bottom of the main shaft 100, and the second magnet 420 is mounted on the first base 500. The repulsive force between the first magnet 410 and the second magnet 420 can reduce the pressure on the main shaft 100.

[0038] In the present application, a first magnet 410 is arranged at the bottom of the main shaft 100, and a second magnet 420 opposite to the first magnet 410 and having the same magnetic property is arranged on the first base 500. By utilizing the principle of like charges repel each other, part of the pressure applied to the main shaft 100 can be offset, thereby reducing the pressure applied to the main shaft 100 and further protecting the main shaft 100.

[0039] It should be noted that the form of the fixing member is not limited, as long as it can fix the vertical windmill 10.

[0040] It should be noted that the type of magnet is not limited, and the magnet can be a permanent magnet or an electromagnet.

[0041] It should be noted that the relative sizes of the cross-sectional areas of the first magnet 410 and the second magnet 420 are not limited. The cross-sectional areas of the first magnet 410 and the second magnet 420 can be set to be the same size, the cross-sectional area of ​​the first magnet 410 can be set to be smaller than the cross-sectional area of ​​the second magnet 420, or the cross-sectional area of ​​the first magnet 410 can be set to be larger than the cross-sectional area of ​​the second magnet 420.

[0042] See Figure 2 As an example, a second base 110 is installed at the bottom end of the main shaft 100, and the cross-sectional area of ​​the second base 110 is larger than the cross-sectional area of ​​the main shaft 100. The first magnet 410 is installed at the bottom of the second base 110, and the cross-sectional area of ​​the first magnet 410 is larger than the cross-sectional area of ​​the main shaft 100 and less than or equal to the cross-sectional area of ​​the second base 110. The cross-sectional area of ​​the second magnet 420 corresponds to the cross-sectional area of ​​the first magnet 410.

[0043] In this embodiment, the cross-sectional areas of the first and second magnets 420 are set to be larger than the cross-sectional area of ​​the spindle 100, which can provide a greater repulsive force than magnets with smaller cross-sectional areas, thereby offsetting more pressure on the spindle 100; at the same time, a second base 110 with a cross-sectional area larger than that of the spindle 100 is added to the bottom end of the spindle 100, and the first magnet 410 is installed on the second base. Compared with directly installing the first magnet 410 on the bottom of the spindle 100, the first magnet 410 can have higher stability.

[0044] In other possible implementations, the first magnet 410 may be sleeved outside the main shaft 100 , and the second magnet 420 may be disposed corresponding to the first magnet 410 .

[0045] It should be noted that the cross-sectional shape of the second base 110 is not limited and can be circular, square, or rectangular.

[0046] As an example, the cross-sectional shape of the second base 110 is circular.

[0047] It should be noted that the cross-sectional shape of the first magnet 410 is not limited and can be circular, square, or rectangular.

[0048] As an example, the cross-sectional shape of the first magnet 410 is circular.

[0049] In this embodiment, the first magnet 410 is configured to be circular, so that the shape of the first magnet 410 is more compatible with the shape of the second base 110 , thereby making the structure of the first magnetic component 400 more regular.

[0050] As an example, the orthographic projections of the geometric centers of the main shaft 100 , the second base 110 , the first magnet 410 , the second magnet 420 and the first base 500 in the axial direction of the main shaft 100 coincide.

[0051] In this embodiment, the above-mentioned configuration can make the first magnetic component 400 more evenly stressed as a whole, thereby improving the stability of the main shaft 100 .

[0052] In other possible embodiments, the orthographic projections of the geometric center of the main shaft 100, the geometric center of the second base 110, the geometric center of the first magnet 410, the geometric center of the second magnet 420 and the geometric center of the first base 500 in the axial direction of the main shaft 100 may not overlap, or may partially overlap.

[0053] It should be noted that since the vertical windmill 10 involves many functional components, the vertical windmill 10 is generally set to a multi-layer structure. Accordingly, the vertical windmill 10 usually includes at least two main shafts 100 connected together. In order to reduce the pressure on the main shaft 100, the structure of the connection of the main shaft 100 can be optimized.

[0054] See Figure 1 and Figure 3 As an example, the vertical windmill 10 includes at least two main shafts 100, which are connected by a connecting shaft 600, and the vertical windmill 10 is provided with a second magnetic component 700 in the area corresponding to the connecting shaft 600. The second magnetic component 700 includes a third magnet 710 and a fourth magnet 720 with the same magnetic properties and arranged opposite to each other. The third magnet 710 is installed on the connecting shaft 600, and the fourth magnet 720 is fixed to the first bracket to reduce the pressure on the main shaft 100 through the repulsive force between the third magnet 710 and the fourth magnet 720.

[0055] In this embodiment, a second magnetic component 700 is arranged in a corresponding area of ​​the connecting shaft 600, wherein the third magnet 710 is installed on the connecting shaft 600, and the fourth magnet 720 is fixed to a first bracket of the peripheral device (not shown in the figure). The repulsive force provided by the third and fourth magnets 720 that are relatively arranged and have the same magnetic properties can offset part of the pressure on the main shaft 100, thereby reducing the pressure on the main shaft 100 and protecting the main shaft 100.

[0056] It should be noted that the form of the first bracket is not limited, as long as it can fix the fourth magnet 720.

[0057] It should be noted that the installation form of the third magnet 710 is not limited and can be adjusted according to actual needs.

[0058] See Figure 3 As an example, the third magnet 710 is installed on the outer wall of the connecting shaft 600 , and the fourth magnet 720 is arranged corresponding to the third magnet 710 .

[0059] In this embodiment, the third magnet 710 is installed on the outer wall of the connecting shaft 600. Compared with installing it on the inner wall of the connecting shaft 600, a larger third magnet 710 can be installed, thereby providing a greater repulsive force and offsetting more pressure.

[0060] It should be noted that the third magnet 710 can be in the form of a whole piece or a plurality of small magnets spliced ​​together.

[0061] As an example, the third magnet 710 is sleeved on the outer wall of the connecting shaft 600 , that is, the third magnet 710 is a whole.

[0062] In this embodiment, the third magnet 710 is arranged in the above-mentioned manner, which can enable the second magnetic component 700 to generate a more evenly distributed repulsive force, thereby improving the stability of the main shaft 100.

[0063] It should be noted that the form of the blade assembly 200 is not limited, as long as it can drive the main shaft 100 to rotate when exposed to wind.

[0064] See Figure 1 As an example, the blade assembly 200 includes a plurality of wind turbine blades 210 and a plurality of first connecting rods 220, one end of each first connecting rod 220 is connected to a wind turbine blade 210, and the other end of each first connecting rod 220 is fixed to the main shaft 100, so that the wind turbine blade 210 can drive the main shaft 100 to rotate when exposed to wind, and each wind turbine blade 210 is configured to be able to rotate around the rotating shaft 211 of the wind turbine blade 210.

[0065] In this embodiment, the wind turbine blades 210 are configured to be capable of both revolving around the main axis 100 and rotating around their own rotation axis 211. Compared with windmill blades that can only revolve around the main axis 100, the rotation efficiency of the windmill blades can be improved, thereby improving the power generation efficiency of the windmill.

[0066] It should be noted that the form of the driving structure for driving the wind turbine blades 210 to rotate is not limited.

[0067] See Figure 4 As an example, the vertical wind turbine 10 also includes a transmission assembly 230, which includes a second connecting rod 231 and a second conical tooth 232 and a third conical tooth 233 arranged at both ends of the second connecting rod 231 and rotating synchronously. The main shaft 100 is provided with a first conical tooth 120 on the outer rotating sleeve, and a first gear 2111 is provided on the rotating shaft 211. The second connecting rod 231 is rotatably connected to the first connecting rod 220, the first conical tooth 120 is engaged with the second conical tooth 232, and the third conical tooth 233 is engaged with the first gear 2111, and the first conical tooth 120 is configured to meet the following requirements: when the main shaft 100 rotates, the first conical tooth 120 remains stationary, so that the wind turbine blade 210 can rotate around the rotating shaft 211 when exposed to wind.

[0068] In this embodiment, the arrangement is carried out in the above-mentioned form, which can easily realize the self-rotation of the windmill blades. At the same time, each transmission link in the above-mentioned implementation adopts gear transmission, so that the transmission process has the advantages of high transmission efficiency and relatively stable transmission process.

[0069] It should be noted that since the wind turbine blades 210 are the main components of the vertical windmill 10 , the mass of the wind turbine blades 210 accounts for a relatively high proportion in the vertical windmill 10 . In order to better reduce the pressure on the main shaft 100 , the structure of the blade assembly 200 can be optimized.

[0070] See Figure 1 and Figure 5 As an example, the vertical windmill 10 is provided with an annular guide rail 240 corresponding to the bottom of the rotating shaft 211, the annular guide rail 240 is fixed to the second bracket (not shown in the figure), the bottom of the rotating shaft 211 is rotatably matched with the annular guide rail 240, and the vertical windmill 10 is provided with a third magnetic component 300, the third magnetic component 300 includes a fifth magnet 310 and a sixth magnet 320 with the same magnetic properties and arranged opposite to each other, the fifth magnet 310 is installed at the bottom of the rotating shaft 211, and the sixth magnet 320 is installed at the top of the annular guide rail 240, so as to reduce the pressure on the wind turbine blade 210 through the repulsive force between the fifth magnet 310 and the sixth magnet 320.

[0071] In this embodiment, a corresponding annular guide rail 240 is provided at the bottom of the rotating shaft 211, and the fifth magnet 310 is installed at the bottom of the rotating shaft 211, and the sixth magnet 320 is fixed to the second bracket of the external device. The repulsive force provided by the fifth and sixth magnets 320, which are relatively arranged and have the same magnetic properties, can offset part of the pressure on the wind turbine blades 210, thereby reducing the pressure on the wind turbine blades 210, and further reducing the pressure on the main shaft 100, thereby protecting the main shaft 100.

[0072] It should be noted that the form of the second bracket is not limited, as long as it can fix the annular guide rail 240.

[0073] It should be noted that, considering the stability of the wind turbine blade 210 during the rotation process, the structures of the wind turbine blade 210 and the annular guide rail 240 may be adjusted accordingly.

[0074] See Figure 5 As an example, a groove 2112 is provided at the bottom of the rotating shaft 211, the fifth magnet 310 is installed at the bottom of the groove, a protrusion 241 corresponding to the groove 2112 is provided at the top of the annular guide rail 240, and the sixth magnet 320 is installed at the top of the protrusion 241.

[0075] In this embodiment, a groove 2112 is provided at the bottom of the rotating shaft 211 and a corresponding protrusion 241 is provided at the top of the annular guide rail 240. The groove 2112 and the protrusion 241 cooperate with each other, so that the wind turbine blade 210 can be more stable during rotation.

[0076] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A vertical windmill, characterized in that: The vertical windmill is fixed to a fixing frame, and the vertical windmill comprises: spindle; a blade assembly connected to the main shaft, the blade assembly being configured to drive the main shaft to rotate synchronously and generate electricity; a first magnetic assembly, the first magnetic assembly comprising a first magnet and a second magnet having the same magnetic properties and arranged opposite to each other, the first magnet being mounted on the bottom of the spindle, and the second magnet being mounted on the first base, so as to reduce the pressure on the spindle by the repulsive force between the first magnet and the second magnet; A second base is mounted on the bottom end of the spindle, the cross-sectional area of ​​the second base is larger than the cross-sectional area of ​​the spindle, the first magnet is mounted on the bottom of the second base, the cross-sectional area of ​​the first magnet is larger than the cross-sectional area of ​​the spindle and less than or equal to the cross-sectional area of ​​the second base, and the cross-sectional area of ​​the second magnet corresponds to the cross-sectional area of ​​the first magnet; The vertical windmill includes at least two main shafts, the two main shafts are connected by a connecting shaft, and the vertical windmill is provided with a second magnetic assembly in the area corresponding to the connecting shaft, the second magnetic assembly includes a third magnet and a fourth magnet with the same magnetic properties and arranged opposite to each other, the third magnet is mounted on the connecting shaft, and the fourth magnet is fixed to the first bracket, so as to reduce the pressure on the main shaft by the repulsive force between the third magnet and the fourth magnet; The blade assembly includes a plurality of wind turbine blades and a plurality of first connecting rods, one end of each of the first connecting rods is connected to one of the wind turbine blades, and the other end of each of the first connecting rods is fixed to the main shaft, so that the wind turbine blades can drive the main shaft to rotate when exposed to wind, and each of the wind turbine blades is configured to rotate around the rotation axis of the wind turbine blade; The vertical windmill is provided with an annular guide rail corresponding to the bottom of the rotating shaft, the annular guide rail is fixed to the second bracket, the bottom of the rotating shaft is rotatably engaged with the annular guide rail, and the vertical windmill is provided with a third magnetic component, the third magnetic component includes a fifth magnet and a sixth magnet with the same magnetic properties and arranged opposite to each other, the fifth magnet is installed at the bottom of the rotating shaft, and the sixth magnet is installed at the top of the annular guide rail, so as to reduce the pressure on the wind turbine blades through the repulsive force between the fifth magnet and the sixth magnet.

2. The vertical windmill according to claim 1, characterized in that: The orthographic projections of the geometric center of the main shaft, the geometric center of the second base, the geometric center of the first magnet, the geometric center of the second magnet, and the geometric center of the first base in the axial direction of the main shaft coincide with each other.

3. The vertical windmill according to claim 1, characterized in that: The third magnet is mounted on the outer wall of the connecting shaft, and the fourth magnet is arranged corresponding to the third magnet.

4. The vertical windmill according to claim 3, characterized in that: The third magnet is sleeved on the outer wall of the connecting shaft.

5. The vertical windmill according to claim 1, characterized in that: The vertical windmill also includes a transmission assembly, which includes a second connecting rod and second and third conical teeth arranged at both ends of the second connecting rod and rotating synchronously. The outer rotating sleeve of the main shaft is provided with a first conical tooth, and the rotating shaft is provided with a first gear. The second connecting rod is rotatably connected to the first connecting rod, the first conical teeth are engaged with the second conical teeth, and the third conical teeth are engaged with the first gear. The first conical teeth are configured to meet the following requirements: when the main shaft rotates, the first conical teeth remain stationary so that the wind turbine blades can rotate around the rotating shaft when exposed to wind.

6. The vertical windmill according to claim 1, characterized in that: A groove is provided at the bottom of the rotating shaft, the fifth magnet is installed at the bottom of the groove, a protrusion corresponding to the groove is provided at the top of the annular guide rail, and the sixth magnet is installed at the top of the protrusion.

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